/* TLB flushing routines.... */
#include <linux/mm.h>
+#include <linux/sched.h>
#include <asm/mmu_context.h>
* etc. do not do that).
*/
-static inline void __flush_tlb_mm(void *mmv)
-{
- struct mm_struct *mm = (struct mm_struct *)mmv;
- if (mm == current->active_mm)
- load_context(mm->context);
-}
-
static inline void flush_tlb_mm(struct mm_struct *mm)
{
- if (mm->context != 0)
- free_sid(mm->context);
- mm->context = alloc_sid();
- on_each_cpu(__flush_tlb_mm, mm, 1, 1);
-}
+ BUG_ON(mm == &init_mm); /* Should never happen */
-extern __inline__ void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end)
-{
+#ifdef CONFIG_SMP
+ flush_tlb_all();
+#else
+ if (mm) {
+ if (mm->context != 0)
+ free_sid(mm->context);
+ mm->context = alloc_sid();
+ if (mm == current->active_mm)
+ load_context(mm->context);
+ }
+#endif
}
-
+
static inline void flush_tlb_page(struct vm_area_struct *vma,
unsigned long addr)
{
purge_tlb_end();
}
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- unsigned long npages;
+void __flush_tlb_range(unsigned long sid,
+ unsigned long start, unsigned long end);
- npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
- if (npages >= 512) /* 2MB of space: arbitrary, should be tuned */
- flush_tlb_all();
- else {
- mtsp(vma->vm_mm->context,1);
- purge_tlb_start();
- if (split_tlb) {
- while (npages--) {
- pdtlb(start);
- pitlb(start);
- start += PAGE_SIZE;
- }
- } else {
- while (npages--) {
- pdtlb(start);
- start += PAGE_SIZE;
- }
- }
- purge_tlb_end();
- }
-}
+#define flush_tlb_range(vma,start,end) __flush_tlb_range((vma)->vm_mm->context,start,end)
-#define flush_tlb_kernel_range(start, end) flush_tlb_all()
+#define flush_tlb_kernel_range(start, end) __flush_tlb_range(0,start,end)
#endif